By using 30mm and larger scale soldiers, you can make incredible photo's. Just place a 30mm or larger scale in the front. In the back srae the 1:72 scale soldiers...Altough the distance on your photo is just a few cm, in the photo it looks as a great distance..
No, painting is not easy. I can understand that a lot of people don't have the patience and never will have the skills for it. It took me years to practice ever aspect of painting. Besides the scale 1:72 soldiers are very detailed and you need to paint eyes as well as shadow lines.